Male fruit flies found to transfer chemical to females to induce sleep, so they won"t mate with other males
A team of researchers from Bariloche Atomic Center and Fundación Instituto Leloir—IIBBA—CONICET, both in Argentina, has found that male fruit flies inject females with a chemical while mating that makes them sleep after sex so that they will not.....»»
Apple Watch sleep apnea detection gets approval from Health Canada
Following FDA approval in the United States earlier this month, Apple has now received the go-ahead from Health Canada for the Apple Watch’s sleep apnea notification feature. This means Apple is now permitted to roll out the feature to eligible App.....»»
Exploring the role of hydrogen sulfide in the expression of iron uptake genes in E. coli
Antibiotic resistance and oxidative stress response are important biological mechanisms that help bacteria thrive, especially pathogenic bacteria like Escherichia coli. Hydrogen sulfide (H2S), a chemical messenger molecule, regulates several intracel.....»»
Elucidating the mechanism of cell division during plant self-healing
When the stem of a plant is injured, the surrounding cells proliferate to repair and fuse the damaged tissue, eventually restoring function. This self-healing property is utilized in grafting techniques to propagate fruit and vegetable plants......»»
Affordable iron catalysts offer a sustainable route to prized Z-alkenes
Chemists from the National University of Singapore (NUS) have developed an iron-catalyzed method that overcomes a significant challenge in the sustainable synthesis of trisubstituted Z-alkenes by inserting two alkyl chemical groups into a type of com.....»»
Study suggests moon may have been captured from space rather than formed from collision particles
Over six missions to the moon, from 1969 to 1972, Apollo astronauts collected more than 800 pounds of lunar rock and soil. Chemical and isotopic analysis of that material showed that it was similar to the rock and soil on Earth: calcium-rich, basalti.....»»
Wall lizards shed light on how animals prevent harm in territorial disputes
A study appearing in Behavioral Ecology shows that in male wall lizards, certain behaviors have a greater influence on the way they resolve territorial disputes than their size and coloration......»»
"Tamed" molecules for more sustainable catalysts: Chemists succeed in synthesizing a spectacular gallium compound
Catalysts play an important role in the manufacture of many products that we encounter in everyday life—for example in cars for exhaust gas purification or in the chemical industry in the production of fertilizers. Catalysts ensure that these react.....»»
Biologists sequence proteins by pulling them through nanopores
A team of chemical biologists at the University of Washington, working with colleagues at Oxford Nanopore Technologies, has developed a protein sequencing process that involves pulling proteins through nanopores in a lipid membrane. Their paper is pu.....»»
Ultra-high speed camera for molecules: Attosecond spectroscopy captures electron transfer dynamics
In nature, photosynthesis powers plants and bacteria; within solar panels, photovoltaics transform light into electric energy. These processes are driven by electronic motion and imply charge transfer at the molecular level. The redistribution of ele.....»»
Cricket study suggests mating filter narrows when males are trying to save energy
A trio of biologists at the University of Minnesota has found that when male crickets need to save energy, they narrow their mating filter, to focus more exclusively on females......»»
Study shows treed borders around crops provide a base for pollinating, pest-eating hoverflies
Planting and maintaining a border of trees around agricultural fields will help a family of flies that, in turn, is important to crops, according to a recent University of Alberta study......»»
Research abounds at the International Space Station
At the International Space station, researchers are making strides in everything from Earth science to chemical properties. Here's what they're up to and why it matters......»»
AI tools help uncover enzyme mechanisms for lasso peptides
Lasso peptides are natural products made by bacteria. Their unusual lasso shape endows them with remarkable stability, protecting them from extreme conditions. In a new study, published in Nature Chemical Biology, researchers have constructed and tes.....»»
The world’s first tri-fold phone will cost you around $10,000, thanks to scalpers
Chinese smartphone vendor Huawei challenged Apple this year in an unexpected way. Huawei unveiled the world’s first commercially available tri-fold phone, the Mate XT, on … The post The world’s first tri-fold phone will cost you around.....»»
Female elephants rumble to say "let"s go!" Namibian study shows males do too, a sign of unexpected social bonds
In elephant family groups made up of related females and their young, it is clear that the animals produce vocal sounds to coordinate action. This happens when it's time to leave a waterhole, for example. The matriarch or dominant female steps away f.....»»
Huawei"s Mate XT tri-fold smartphone sparks frenzy, prompting scalpers to raise prices
Huawei"s Mate XT tri-fold smartphone sparks frenzy, prompting scalpers to raise prices.....»»
Visible-light-antenna ligand enhances samarium-catalyzed reactions
Samarium (Sm), a rare earth metal, is important to organic chemists because of the ability of its divalent compounds to efficiently perform single-electron transfer reductions......»»
New computational insights use Marcus theory to unlock the potential of photocatalysis
Dr. Albert Solé-Daura and Prof. Feliu Maseras have explored the application of the Marcus theory, traditionally used to model electron transfer, to estimate the free-energy barriers underlying energy transfer (EnT) processes. These results support t.....»»
Beetles cooperate on tricky dung moves
Dung beetles are among the strongest animals in the world. They also possess an exceptional ability to cooperate. Research shows that female and male spider dung beetles together are able to move large dung balls across difficult obstacles. However,.....»»
Penn State to pay $703K to resolve allegations it paid some women less than male colleagues
Penn State to pay $703K to resolve allegations it paid some women less than male colleagues.....»»